quinlivan



Nov. 9 1926. 1,606,042

M. J. QUINLIVAN y VALVE' SEAT AND LINER PULLER vFiled June so, 1924 2 lsheets-shemx 1 Jive/'Zion Nov. 9 1926.

M.J. QUINLIVAN VALVE SEAT AND LINER FULLER Filed June 50, 1924 2 Sheets-Sheet 2 Mar/fg Patented Non. 9,

l MIKEL J. QUINLIVAN, OF TORRANCE, CALIFORNIA.

VALVE SEAT AND LINER PULLER.

Application filed June 30, 1924. Serial No. 723,076.

their useful life thus becoming so short that frequent replacement is necessary. The

seats and liners are in the nature othv cylindrical tubes or bushings, and they are necessarily pressed to seat very firmly. Consequently, it is a matter of great difliculty to remove them for replacement, especially in view of the factthat they oiler no easily accessible gripping surfaces or shoulders to take pulling tools.

In thev absence of auxiliary pumps, drilling and casing setting operations must nec-essarily cease while a circulating pump is being retted with'valve seats or liners, the time thus consumed representing a real factor in the ultimate cost of kthe well being drilled. Even though the use of auxiliary pumps eliminates the necessity of a shut down7 each time a'pump is reitted, still, liner replacement operations, as accomplished by usual methods, are most expensive both from the standpoint oli' time consumed and from the Yfact that damage is often done to the pump casing bores in attempting to remove refractory liners.

Therefore, it is among the objects of my invention to provide a device whereby valve seats and cylinder liners may be positively and quickly withdrawn, irrespective of how firmly they may be seated; a device which is oi utmost simplicity, being very cheaply manufactured and requiring but little skill to operate it; a device, which, in its application tewerk, will not harm the pump casing; anda device of sturdy construction whereby it is able to stand up under the severe service conditions to which it is exposed.

The puller will be fully described in the following detailed specification wherein further 'features ,of-,novelty and objects ci? the invention will also he est forth.

Referentie v will-be hadto the accompanying drawings, i

in which:

Fig. 1 is a medial section through the casing of a mud hog pump showing my improved puller in operative position thereon;

Fig. 2 is a fragmentary section on line 2 2 of Fig. 1;

Fig. 3 is a fragmentary side elevation of Fig. 1, as viewed from the right thereof, and showing the puller applied to the cylinder liner;

Fig. 4 is a section on line 4 4 of Fig. 1;

Fig. 5 is a perspective of a bearing block which may make up a part of my device;

Fig. 6 is a perspective of one of thel pull rods of the device; and

Fig. 7 is a perspective of the rod Vsupporting plate of the puller.

In Fig. 1 I have illustrated the water end of a mud hog pump; the pump casing being indicated at 10, the cylinder bore at 11, the cylinder liner at 12, and the valve seats at 13 and 14. Normally, the casing opening 15 (which is in axial alinementwith cylinder bore 11,) and casing openings 16 and 17 (which are in axial alinement with seats 13 and 14, respectively) are closed by caps or heads (not shown) which are removable in order to give access to said valve seats andliners. i

In order to conserve space, I have illustrated threel pulling devices, A, B,` and. C,

applied to the p'ump shown in Fig. 1, although itwill be understood that ordinarily only a single puller will be applied to a given pump at any one time. YSince the three pullers illustrated in this figure are of identical. construction `(except that the puller applied to liner 12 is provided with an auxiliary bearing block and with extra long pulling rods) they may be consideredV as illustrating a single device, and similar numerals of reference will be applied to such parts as are identical; In order that Fig. v

1 may completely illustrate the construction of the puller, the deviceB, shown applied to valve seat 14, is positioned at 90 with relation to device A, said device B being viewed in cross section as taken on line -b of devicey A.

Generally, my deviceV includes a bearing block adapted to spanthe valve orcylinder mouth, a cross plate disposed over the block, uil r extending, from the plate to the' introduced between the block and plate to spread them apart and thus set up longitudinal, pulling movement of the rods. Qbviously, inclined faces may be provided on either or both sides of the wedge member, and accordingly on either or both the bearing bloclt and plate, to secure the described spreading movement, but, for purpose of illustrating the invention, I have shown the wedges as having a single inclined tace adapted to engage an inclined tace on the bearing block, only. However, this speciic showing is not to be construed as in any way limiting the invention, considered in its broader aspects.

ln Fig. I have illustrated a bearing block 18 having an inclined wedge tace 19 and rod positioning shoulders 2O (see Fig. 2'), the block being adapted to bridge opening 16 (or 17) with the lower faces ot' its ends 21 bearing on the pump casing at opposite sides of the opening. 1n order that the block may be positioned properly with respect to openings 16 or 17 and may not shi'lt laterally over the pump casing, I provide a centrally arranged, depending portionQQJ adapted to tit within openings 16 or 17, diametrically` opposite positioning shoulders L3 formed by said portion being adapted to engage the defining walls ot said openings.

A wedge 211 is adapted to engage block tace 19; and a cross-plate 25 is laid across wedge 24, the bifurcated ends 26 ot said plate being adapted to extend beyond the sides ofthe wedge and bearing block.

Pull rods 27, received within the bifurcations ot platey 25, have heads Q8, the under faces of which provide shoulders 29 adapted to bear on top plate and thus serving to suspend the rods from the plate;

while the lower ends ot the rods have hooks 30 adapted to engage the inner ends ot seats 13 or lll.

Preferably, angles 31 and 32 (Fig. 1) are complementary to 'bring' the upper faces ot' plate 25 and casing 10 into parallelism and so rods 2T, with their right angle shoulders 29 in 'full engagement with plate 25, hang perpendicularly from said plate.

In certain situations, l may find it desirable to dispense with block 18 and to allow the wedge to coact directly with the upper faceot casing 10 at each side the cas- 1 ing openings, but it will be understood that bearing block to take valve seatsv of dilerent invention, I cla-im.:

neoaoaa diameters. Said bifurcations also allow the rods to be tilted so their lower ends may be moved towards one another while the puller Vis being assembled and moved to operative position.

lhereupon, wedge 24 is hammered home between plate 25 and block 18 with the result that plate 25 is wedged upwardly, carrying with it rods 27 and hence freeing bushing 13 or 14- trom their seats. It is obvious that the tremendous pulling power exerted by the wedge is ample to withdraw the bushings even. though they may have been very tirmly pressed to seat, and that the withdrawal operation may be accomplished without injuring any part of the pump. A

ln order that a single wedge block may be used either for pulling valve seats or cylinder liners (it being understood that cylinder liners are usually ot greater diameter than valve seats, and that opening 15 is consequently larger than openings 16 or 17) l may'provide an auxiliary bearing block 33 when the puller is to be applied to liner 12. Also, it will usually be necessary to utilize pull rods 27L ot greater lengthy than rods 2'?, when working upon cylinder liners. Bloem 33 is in the nature ot a ring 341 held in spaced relation with casing lo by legs 35, which latter may be removably secured to said casing by bolts 36 threaded into the apertures provided tor the usual head or cap bolts (not shown). The aperture 37're'ceives portion 22 ot block 18 to prevent said block trom shifting laterally over the auxiliary block, while clearance 3S is provided to allow the passage ot rods 27a through the aperture without interfering with ring 35. it will' be noted that rods 2? are moved outwardly towards the ends ot plate 25 in order to lit the puller tothe large diameter' liner 12.

Auxiliary block 33 may also be used'as a. spacer in a situation where the outer or exposed end ot the bushing, to be withdrawn, comes Hush, or nearly flush with the 'be made without departing from the spirit and scope of my invention, and therefore, l do not wish to be limited to the drawings and description set forth above except for such limitations as a fair" interpretation o4' the appended claims may import.

Having described a. lpreferred form of my llt) 1. In a device of the character described, a movable wedge member, a bearing block adapted to engage one side of the wedge, a crossplate adapted to engage the opposite side of the wedge, oppositely facing and individually movable hooks arranged at opposite sides of and spaced from the block, and means arranged at opposite sides of the bloclr and individually connecting the hooks and plate whereby separative movement of the block and plate caused by movement of the wedge moves said hooks with relation to said block.

2. In a device of the character described,

a movable wedge member, a bearing block adapted to engage one side of the wedge, a cross-plate adapted to engage the opposite side ot the wedge, and a plurality of pull rods, each rod having a head at one end and a hook at the other end, the headed ends of the rods being adapted to removably engage the plate whereby, when the plate and heads are in operative engagement, separative movement between the block and plate caused by movement of the wedge imparts longitudinal movement to said rods.

' 3. In a device of the character described, a movable wedge member, a bearing block adapted to engage one side of the wedge, a cross-plate adapted to engage the opposite side of the wedge, hooks spaced from the block, and adjustable means connecting the hooks and plate whereby separative movement ont the blocks and plate caused by movement of the wedge moves said hooks with relation to said blocks.

Al. In a device or' the character described, a bearing block, a slotted cross plate, a movable wedge between the block and plate, and pull rods extending, with clearance, through the slots in said plate and having heads adapted to engage said plate in a manner whereby separative movement between the blocks and plate caused by movement of the wedge imparts longitudinal movement to said rods.

5. In a device for pulling a bushing -from a pump bore, pull rods adapted to extend through the bore of said bushing and having hooks adapted to engage the inner end of the bushing, a crossplate adapted to connect the ends of said rods, and a movable wedge adapted to coact with the pump casing and said plate in a manner whereby movement of the wedge moves the plate away from the casing, and thereby moves the pull rods longitudinally and draws the hooks and bushing towards the mouth of the pump bore.

6. In a device for pulling a bushing :trom a pump bore, pull rods adapted to extend through the bore of said bushing and having hooks adapted to engage the inner end of the bushing, a bearing block adapted to bridge the mouth of the pump bore, a cross plate adapted to connect the ends of saidv rods at a point beyond the block, and a movable wedge adapted to be driven between said bearing block and said plate.

7. In a device for pulling a bushing from a pump bore, pull rods adapted to extend through the bore of said bushing and having hooks adapted to engage the inner end of the bushing, a bearing block adaptedv to bridge the mouth of the pump bore, positioning shoulders on the block adapted to engage the pump casing to hold the block against shifting laterally across said mouth, a cross plate adapted to connect the ends of said rods at a point beyond the block, and a movable wedge adapted to be driven between saidV bearing block and said plate.

8. In a device for pulling a bushing from a pump bore, pull rods adapted to extend through the bore of said bushing and having hooks adapted to engage the inner end of the bushing, a cross plate adjustably connecting the ends of said rods, andamovable wedge adapted to coact with the pump casing and said plate in a manner whereby movement of the wedge moves the plate away from the casing and thereby moves the pull rods longitudinally and draws the hooks and bushing towards the mouth of pump bor-e.

9. In a device Jfor pulling a bushing from a pump bore, a bearing block adapted to bridge the mouth of the pump bore, pull rods extending at bothv ends beyond the block, one end of each rod being adapted to extend through the bushing bore and having means adapted to engage the inner end of the bushing, a wedge bearing at one side on top of the block, a slotted cross plate on the opposite side of the wedge, the opposite eX- tremity of each rod extending through a slot in the plate and having a head adapted to engage the top of the plate.

In witness that I claim the foregoing I have hereunto subscribed my name this 23rd` day of June, 1924.

MIKEL J. QUINLIVAN. 

